Entrance-tube for grain-ventilators



(No Model.)

L. T. BOW ENTRANCE TUBE FOR GRAIN VENTILATORS. No. 266,083.

Patented Opt. 17, 1882..

vii 507' neg.

N. PETERS PhnknLflhogrlphar. Washington. D. (Zv

UNTTED STATES PATENT OFFICE.

LAFAYETTE T. BOW, OF BURKSVILLE, KENTUCKY.

ENTRANCE-TUBE FOR GRAIN-VENTILATORS.

SPECIFICATION forming part of Letters Patent No. 266,083, dated October 1'7, 1882.

Application filed August 18, 1882.

To all whom it may concern:

Be it known that I, L. T. BOW, of Burksville,in the county of Cumberland and State of Kentucky, have invented certain new and useful Improvements in Entrance-Tubes for Grain- Ventilators; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing, and to the letters of reference marked thereon, which forms part of this specification, in which the figure is a diametrical section through my improved grain-ventilator.

This invention relates to grain and hay ventilators, the object of which is to allow a free circulation of air in a body of grain or hay for the purpose of preventing heating, souring, or general deterioration of the product; and the nature of my invention consists in a tapered and perforated tube wound in a spiral form, and connected removably to a straight perforated tube having a T-wrench secured to it, as will be hereinafter fully explained.

The letterAdesignatesastraight tube,which may be of any desired length, and which is thickly perforated. as shown. This tube has inserted into one end a plug, E, which is rigidly secured to a T-shaped head, D, forming two hand levers or wrenches, by which the ventilator can be forcibly introduced into a haymow or into a body of grain. The plug E is connected to the perforated tube A by means of a pin, F, which is preferably attached by a cord or chain, a, to one of the arms of the head 1). By removing the pin F the head and its plug can be detached from the tube A, thus leaving the end thereof open for free ventilatlon.

(No model.)

B designates a spiral penetrating-point,

which is a tube thickly perforated and tapered, so that it terminates in a point, 0. This spiral or screw-shaped penetrating-pom t B is attached to the straight tube A by means of a pin, E, so that when desired the said point can be detached from the tube A. I prefer to use conical wood points 0, although these points may be made of metal, and they may be reniovably attached to the perforated tube A by means of a pin or by means of a screw.

It will be seen from the above description that I have a ventilator which is composed of a straight tube terminated by a spiral penetrating-point, both the point and tube being perforated for the purpose of affording free ventilation and circulation of air. It will also be seen that I provide my ventilator with a removable handle or wrench, which is used for inserting the instrument into a body of grain or hay by a screwing action.

Having described my invention, I claim- A grain or hay ventilator. consisting of a straight perforated tube, A, a wrench, D, a

plug, E, a pin, 1*, a tapered spiral penetratingtnbe,B, detachable from the tube A and thickly perforated, and the solid removable penetrating point (J, all constructed and adapted to operate substantially as described.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

LAFAYETTE TAYLOR BOW.

Wi tn esses:

M. S. IRBY, E. A. VINCENT. 

